1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natita [175]
3 years ago
7

Which of these statements best explains how fossil records provide evidence to the scientific theory of evolution?

Chemistry
1 answer:
Lorico [155]3 years ago
6 0

your answer would be C

hope i helped

You might be interested in
Cuales son las fórmulas de la velocidad
AnnZ [28]

Answer:

s = d÷ t

Explanation:

Where s means speed, d means distance and t means time

7 0
3 years ago
Phosphorous pentchloride (pcl5 ) is used as a chlorinating reagent in chlorination of organic compounds. what type of bonding oc
schepotkina [342]

<span>The type of bond that a Phosphorous pentachloride have is an Ionic Bonding. It is a form of chemical bond that encompasses the electrostatic attraction between oppositely charged ions which serves as the primary interaction happening in ionic compound. Phosphorus has 5 valence electrons and Chlorine has 7 valence electrons. Phosphorus contributes 1 electron to each chlorine and all the 6 achieve 8 electrons in the outer shell thus creating an ionic bond.</span>

5 0
3 years ago
Read 2 more answers
Calculate the equilibrium constant K for the following reaction: H2(g) +
SIZIF [17.4K]

Answer:

192.9

Explanation:

From the question,

Ke = [HCL]²/[H₂][CL₂].......................... Equation 1

Where Ke = Equilibrium constant.

Given: [HCL] = 0.0625 M, [H₂] = 0.0045 M, [CL₂] = 0.0045 M

Substitute these values into equation 1

Ke = (0.0625)²/(0.0045)(0.0045)

ke = (3.90625×10⁻³)/(2.025×10⁻⁵)

ke = 1.929×10²

ke = 192.9

Hence the equilibrium constant of the system = 192.9

5 0
3 years ago
A gas has a pressure of 450 mmHg at 100 degrees Celsius. What will its new pressure be when the temperature rises 200 degrees Ce
Ahat [919]

Answer:

P2 = 900 mmHg.

Explanation:

Given the following data;

Initial pressure = 450 mmHg

Initial temperature = 100°C

Final temperature = 200°C

To find the final pressure, we would use Gay Lussac's law;

Gay Lussac states that when the volume of an ideal gas is kept constant, the pressure of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Gay Lussac's law is given by;

PT = K

\frac{P1}{T1} = \frac{P2}{T2}

Making P2 as the subject formula, we have;

P_{2}= \frac{P1}{T1} * T_{2}

P_{2}= \frac{450}{100} * 200

P_{2}= 4.5 * 200

Final pressure, P2 = 900 mmHg.

3 0
2 years ago
Which of these best describes the bonding between oxygen and hydrogen in the water molecule?
DaniilM [7]
It is a Polar Covalent.
3 0
3 years ago
Other questions:
  • An optically active alkyne A (C10H14) can be catalytically hydrogenated to butylcyclohexane. Treatment of A with C2H5MgBr libera
    14·1 answer
  • An element belongs to group 17 of the periodic table. The element is most likely a
    8·1 answer
  • ) how much of the primary standard benzoic acid (fm 122.12, density 1.27 g/ml) should you weigh out to obtain a 100.0 mm aqueous
    14·1 answer
  • Based on the units given for displacement and time, what will the units for velocity be?
    12·1 answer
  • How many moles are in 579 grams of Pt
    11·2 answers
  • The reason your classmate cannot find the compound in a chemical reference manual is that 2,4-diethyl-4-ethoxyhexane is the inco
    13·1 answer
  • ! WILL GIVE BRAINLIST !
    13·1 answer
  • 1.Which has a larger radius Ca atom or Ca+2 ion?
    6·1 answer
  • 3. How is the equilibrium position of this reaction affected
    15·1 answer
  • If an atom has 4 protons, 5 neutrons, and 4 electrons, what would its atomic mass be?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!